It’s legendary, yet revolutionary, high zinc formula Blue Blood Racing Oils are designed to provide enhanced racing performance and unsurpassed wear protection in today’s high-revving, heavy-load competition engines. • High zinc levels for excellent anti-wear protection • Excellent oxidation stability in high performance engines • Full Synthetic 0W-30: Formulated with thermally stable synthetic base stocks and additional friction modifiers to deliver the maximum obtainable horsepower. Blue Blood is especially designed to resist thermal breakdown and can be used with a wide variety of competition fuels.